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loadPixels() quick question

[1 Reply]
- 18-Nov-2011 07:07 AM
- Forum: Programming Questions
I'm trying to get all my pixels, so I used loadPixels(), but the resulting pixels[] only contains the value -3355444.00.
2. import Jama.util.*;
3. import Jama.*;
4. import Jama.test.*;
5. import Jama.examples.*;
6. import javax.swing.JOptionPane;
9. PImage picture;
11. void setup(){
12. size(600, 600);
13. String filename = getFilename();
14. picture = loadImage(filename);
15. size(picture.width, picture.height);
16. loadPixels();
17. double[][] pixel2DArray = new double[picture.height][picture.width];
19. int index = 0;
20. for (int i=0; i< picture.height; i++){
21. for(int j=0; j< picture.width; j++){
22. if(index < pixels.length){
23. pixel2DArray[i][j] = pixels[index];
24. index++;
25. }
26. }
27. }
29. Matrix pictureMatrix = new Matrix(pixel2DArray);
30. pictureMatrix.print(10,2);
31. }
33. void draw(){
34. image(picture, 0, 0);
35. }
37. String getFilename(){
38. return JOptionPane.showInputDialog("What is the name of the file (include extension)?");
39. }

Question About Using APIs?

[2 Replies]
- 20-Oct-2011 07:49 PM
- Forum: General Discussion
- Sub forum: Other
Hi, so I'm kind of confused about how to use APIs. I want to use the rotten tomatoes API.

So here is what I think we need to do:

We have the base url and the other urls they provide to find specific information, and by using these URLs, it'll return a new URL that we have to parse with an.html parser...Is that right?

Also, even though they only provide examples for Javascript and PHP, I can still use this API for processing, right?

Also, would I need to use proHTML or proXML?

Thanks!

Twitter4j Error

[3 Replies]
- 20-Oct-2011 10:18 AM
- Forum: Contributed Library Questions
I keep getting this error that says "cannot convert from Twitter to Twitter" when I try to run this:

try{

Twitter twatter = new TwitterFactory().getInstance(); //this is where the error occurs

twatter.setOAuthConsumer("W........Q", "I........g");

RequestToken requestToken = twitter.getOAuthRequestToken();

AccessToken accessToken = null;

Query query = new Query("source: twitter4j yusukey");

QueryResult result = twittersearch(query);

for (Tweet tweet : result.getTweets()){

System.out.println(tweet.getFromUser() + ":" + tweet.getText());

}

}

catch(TwitterException te){

println("Couldn't connect: " + te);

}

}

how can I fix this? I'm just trying to run some sample codes from the twitter4j website, but it doesn't work?

Thanks

help get() pixels from Image

[1 Reply]
- 06-Oct-2011 05:31 PM
- Forum: Programming Questions
Basically, I have a background image that I'm adding a layer to, and then I want to erase the layer to reveal the background image again.

So I have a PImage copy of the background that I'm getting pixels from, and I want to be able to get the pixel at the place where the mouse is, as well as the space surrounding it. I know the that for the get method, you have get(mouseX, mouseY, xWidth, yHeight), but instead of it getting a square shape of the pixels around it, is there a way to get a circular shape around the point where the mouse is?

Also, for some reason, when I draw onto the screen to reveal the background again, it always reveals itself temporarily, but then the layer covers what I just drew on the screen, but then when I click the screen, everything I drew previously reappears. How do I keep the layer from covering my picture over and over again?

I don't want to have my code floating around the internet since this is a project, so if you want, I can message it to you.

Thanks!

Circle with faded edges

[4 Replies]
- 04-Oct-2011 07:54 PM
- Forum: Programming Questions
This is probably a really silly question, but how would you make the opacity decrease as you reach the edge of a circle? Right now, I am just stacking increasingly larger semi-transparent circles on top of each other, but the edges are really rough, and you can see where each circle ends. I want a smooth circle that fades to reveal the background as it reaches the edges.

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